Efficient water mixing tank for high-temperature cooling water system

Abstract

An efficient water mixing tank for a high-temperature cooling water system is provided with a cylindrical tank body, the tank body is composed of a straight cylinder section in the middle, an outlet end cover and an inlet end cover, the outlet end cover and the inlet end cover are arranged at the two ends, the tank body is horizontally placed, the inlet end cover is connected with high-temperature cooling water, and the outlet end cover is connected with a cooler; the partition plate divides the interior of the box body into a water inlet cavity and a water outlet cavity. A water outlet short pipe is arranged in the water inlet cavity, a water return short pipe is arranged in the water outlet cavity, the water outlet short pipe and the water return short pipe are arranged at the bottom of the box body, the top of the water return short pipe extends into the box body and extends upwards, the top of the water return short pipe is connected with an elbow, the elbow is provided with a nozzle, and the nozzle is aligned with the outlet end cover. The water mixing tank is mainly used for mixing work of a bypass fresh water generator pipeline of high-temperature cooling water, can effectively prevent backflow of the fresh water generator from generating turbulent flow in the water mixing tank and can also prevent the backflow of the fresh water generator from being sucked away by a booster pump of the fresh water generator again, and the working efficiency of the fresh water generator is greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of offshore ship design and construction, and particularly relates to a high-efficiency water mixing tank for a high-temperature cooling water system. BACKGROUND

[0002] The high-temperature cooling water system on a ship is a cooling water system for cooling the cylinder sleeve of a main engine or a generator. The temperature of the high-temperature water after passing through the cylinder sleeve of the main engine or the generator can reach 90 degrees. The heat of the high-temperature water is generally used to heat seawater to evaporate the seawater and thus produce fresh water.

[0003] The high-temperature water generally does not directly pass through the water generator. A bypass pipeline is generally added to facilitate the adjustment of the temperature of the high-temperature water. If a bypass pipeline is directly added to the high-temperature water pipeline, turbulence will be caused. Therefore, a water mixing tank is generally added. The design goal of the system is that when the high-temperature water system passes through the water mixing tank, part of the high-temperature water enters the water generator through a booster pump, heats the seawater, and flows back to the water mixing tank, and then flows out from the outlet of the water mixing tank. Although the conventional water mixing tank solves the problem of turbulence, it often causes a new problem, that is, the water flow at the inlet and outlet of the water generator forms a circulation in the water mixing tank. Especially when the water pressure is relatively low, the water (with a relatively low temperature) at the outlet of the water generator will be sucked away by the booster pump. This will cause the temperature of the water entering the water generator to decrease, which cannot meet the use requirements of the water generator. Therefore, a high-efficiency water mixing tank is needed to avoid this situation. SUMMARY

[0004] To solve the above problems, the application provides a high-efficiency water mixing tank for a high-temperature cooling water system.

[0005] The high-efficiency water mixing tank for the high-temperature cooling water system comprises a cylindrical tank body. The tank body comprises a straight cylinder segment in the middle and outlet end covers and inlet end covers at both ends. The tank body is horizontally placed. One end of the tank body is connected with high-temperature cooling water, and the other end of the tank body is connected with a cooler. A partition plate is fixed in the middle of the tank body. The partition plate is vertically arranged. The height of the partition plate is less than the diameter of the tank body. The partition plate is an arc-shaped plate with a flat top. The edge of the partition plate is fixedly connected with the inner wall of the tank body. There is a gap between the top of the partition plate and the inner wall of the tank body. The partition plate divides the tank body into a water inlet cavity and a water outlet cavity.

[0006] A water outlet short pipe is arranged in the water inlet cavity, and a water return short pipe is arranged in the water outlet cavity. The water outlet short pipe and the water return short pipe are arranged at the bottom of the tank body. The top of the water return short pipe extends into the tank body and extends upward. A bend is connected to the top of the water return short pipe. The bend is provided with a nozzle. The nozzle is aligned with the outlet end cover.

[0007] Further, the end of the water outlet short pipe is connected with a water outlet flange, and the end of the water inlet short pipe is connected with a water inlet flange.

[0008] Furthermore, in the aforementioned high-efficiency mixing tank for a high-temperature cooling water system, a high-temperature water outlet flange is fixed on the outlet end cover, and a high-temperature water inlet flange is fixed on the inlet end cover.

[0009] Furthermore, in the aforementioned high-efficiency mixing tank for a high-temperature cooling water system, the flow area between the inlet chamber and the outlet chamber is not less than the inner diameter flow area of ​​the high-temperature water inlet flange.

[0010] Furthermore, in the aforementioned high-efficiency mixing tank for a high-temperature cooling water system, the elbow is a 90° elbow, and the central axis of the nozzle is the same as the central axis of the tank body.

[0011] This invention discloses a high-efficiency mixing tank for a high-temperature cooling water system. It features a simple manufacturing process, compact structure, and efficient mixing capabilities. Primarily used for mixing high-temperature cooling water in bypass water maker pipelines, it effectively prevents turbulence caused by backflow from the water maker within the mixing tank and also prevents the backflow from the water maker from being drawn back by the water maker booster pump. This significantly improves the working efficiency of the water maker, enhances the flow and cooling effect of the high-temperature cooling water, and simultaneously reduces the workload of the cooler and lowers energy efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the mixing tank structure;

[0013] Figure 2 This is a schematic diagram illustrating the application of a mixing tank in the system;

[0014] Among them: 1-High temperature water inlet flange, 2-Box body, 3-Baffle, 4-High temperature water outlet flange, 5-Outlet short pipe, 6-Outlet flange, 7-Elbow, 8-Return short pipe, 9-Return flange, 10-Nozzle, 11-Outlet end cover, 12-Inlet end cover, 13-Inlet chamber, 14-Outlet chamber. Detailed Implementation

[0015] The invention will be further described with reference to the accompanying drawings. Example

[0016] A high-efficiency mixing tank for a high-temperature cooling water system, such as Figure 1 As shown, the housing 2 has a cylindrical structure. A hemispherical inlet end cap 12 is welded to the inlet end of the high-temperature cooling water, and a hemispherical outlet end cap 11 is welded to the outlet end. The whole structure forms a cylindrical cavity, which is the main structure of the present invention.

[0017] The high-temperature water inlet flange 1 and the inlet end cover 12 are interconnected, allowing high-temperature cooling water to enter the housing 2 from the inlet flange 1. The high-temperature water outlet flange 4 and the outlet end cover 11 are interconnected, allowing high-temperature cooling water to flow out from the housing 2 through the flange 4.

[0018] A semicircular partition 3 is installed in the middle of the box 2, the height of the partition 3 is slightly higher than the center line of the box 2, which is used to divide the box 2 into two parts, the water inlet cavity 13 and the water outlet cavity 14, but the flow area of the unsealed part between the two cavities should not be less than the inner diameter flow area of the high-temperature water inlet flange 1.

[0019] On one side of the water inlet cavity 13, the bottom of the box 2 is welded with a water outlet short pipe 5, which is used to supply water to the water generator booster pump 22. The end of the water outlet short pipe 5 is welded with a water outlet flange 6 for convenient pipeline connection. The water outlet short pipe 5 does not need to penetrate into the box 2, and it can be connected in the same plane.

[0020] On one side of the water outlet cavity 14, the bottom of the box 2 is welded with a water return short pipe 8, and the end is welded with a water return flange 9 for connecting the water return pipeline from the water generator 23. The water return short pipe 8 penetrates the box 2 and penetrates into the center of the box 2 and is welded with the elbow 7. The elbow 7 is a 90-degree elbow, the outlet center is the same as the center of the box 2, and the outlet of the elbow 7 is welded with a nozzle 10, which is centered with the high-temperature water outlet flange 4, so that the water return from the water generator 23 can be directly sprayed into the high-temperature water outlet flange 4.

[0021] The installation diagram of the water mixing box is shown in Figure 2 When working, the high-temperature cooling water flows out of the main engine 20 outlet, enters the high-efficiency water mixing box 21 of the present application, part of the high-temperature cooling water is sucked by the water generator booster pump 22 through the water outlet flange 6 and enters the water generator 23, which is used to heat the seawater to evaporate and produce fresh water. Then, the high-temperature cooling water flows out of the outlet of the water generator 23, flows back to the water outlet cavity 14 of the high-efficiency water mixing box 21 through the water return flange 9. After the water return and the high-temperature cooling water are mixed, they flow out of the outlet of the high-efficiency water mixing box 21, flow into the cooler 25 through the temperature control valve 24, cool the high-temperature cooling water, and the cooled cooling water flows back to the main engine 20 to complete the cycle.

Claims

1. A high-efficiency water mixing tank for a high-temperature cooling water system, characterized by comprising: The water mixing box has a cylindrical box body, which is composed of a straight cylinder section in the middle and outlet end covers and inlet end covers at both ends. The box body is horizontally placed, the inlet end cover is connected with high-temperature cooling water, and the outlet end cover is connected with a cooler. A partition plate is fixed in the middle of the box body. The partition plate is vertically arranged and has a height less than the diameter of the box body. The partition plate is an arc plate with a flat top. The edge of the partition plate is fixedly connected with the inner wall of the box body, and a space exists between the top of the partition plate and the inner wall of the box body. The partition plate divides the box body into a water inlet cavity and a water outlet cavity. A water outlet short pipe is arranged in the water inlet cavity, and a backwater short pipe is arranged in the water outlet cavity. The water outlet short pipe and the backwater short pipe are arranged at the bottom of the box body. The top of the backwater short pipe extends into the box body and extends upward. A bend is connected to the top of the backwater short pipe. The bend is provided with a nozzle. The nozzle is aimed at the outlet end cover.

2. The high-efficiency water mixing box for a high-temperature cooling water system according to claim 1, characterized in that, A water outlet flange is connected to the end of the water outlet short pipe, and a water inlet flange is connected to the end of the water inlet short pipe.

3. The high-efficiency water mixing box for a high-temperature cooling water system according to claim 1, characterized in that, A high-temperature water outlet flange is fixed to the outlet end cover, and a high-temperature water inlet flange is fixed to the inlet end cover.

4. The high-efficiency water mixing box for a high-temperature cooling water system according to claim 3, characterized in that, The flow area between the water inlet cavity and the water outlet cavity is not less than the inner diameter flow area of the high-temperature water inlet flange.

5. The high-efficiency water mixing box for a high-temperature cooling water system according to claim 1, characterized in that, The bend is a 90° bend, and the central axis of the nozzle is the same as the central axis of the box body.

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